[GreenKeys] Signalling unit TG2164?

[Jeremy Harmer]

Hi

Does anyone have a circuit diagram or connection info for a TG2164 ’signalling unit’ (PSU and some logic basically)? It has 80-0-80V onboard and various signal attachments for a teleprinter. It features in the Renton telegraphy book (p291) but there is insufficient info there.

Ta

Jeremy
2E0IGP

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